The well-studied health benefits (of pet ownership) are claimed to be much greater than the research results actually support. For example, it is claimed that a beloved dog will lower a person’s blood pressure, reduce stress hormones, calm anxiety, and even make it easier to interact with other human beings. A recent systematic review indicate that the physiological effects of interacting with a pet may not be as strong as is commonly reported.
Herzog, H. 2022. Is time with pets good for our cardiovascular health? The surprising results of 129 studies. Psychology Today Aug 11 https://www.psychologytoday.com/us/blog/animals-and-us/202208/is-time-pets-good-our-cardiovascular-health